Amorphous physics and materials: Secondary relaxation and dynamic heterogeneity in metallic glasses: A brief review
Qiao J C1, 2, 3, †, Wang Q4, Crespo D5, Yang Y2, Pelletier J M3, ‡
       

(color online) (a) The emergence of two secondary relaxations in La Ce Ni Al10 metallic glass on the isochronal spectrum of mechancial spectrosopy; [86] (b) Temperature dependence of the slow β-relaxation and the fast -relaxation measured at frequencies of 1, 2, 4, 8 and 16 Hz for Er55Co20Al25 metallic glass; [87] (c) The schematic illustration of mechanisms of mechanical relaxations in amorphous alloy. The red atoms represent the active atoms, and atoms surrounded by green dash line represent flow units. [87] Reprinted from [87], with the permission of AIP publishing.